error[E0107]: wrong number of type arguments: expected 0, found 1
  --> $DIR/issue-53251.rs:11:24
   |
LL |                 S::f::<i64>();
   |                        ^^^ unexpected type argument
...
LL | impl_add!(a b);
   | --------------- in this macro invocation
   |
   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0107]: wrong number of type arguments: expected 0, found 1
  --> $DIR/issue-53251.rs:11:24
   |
LL |                 S::f::<i64>();
   |                        ^^^ unexpected type argument
...
LL | impl_add!(a b);
   | --------------- in this macro invocation
   |
   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0107`.